baber/WOPTO huggingface dataset:
Patent GB-353733-A (GB)
IPC: C01D9/00
Filed: 1930-08-22
Abstract: The reaction mass obtained after causticizing in the process of the parent Specification is subjected to a further cyanide formation followed by an oxidation process whereby the cyanide is converted into sodium nitrate; any oxides of nitrogen that are formed are combined with sodium hydroxide produced in the process to give sodium nitrate.
Patent GB-600146-A (GB)
Title: Improvements in and relating to condensation products of thiourea
IPC: C07G99/00
Filed: 1945-09-28
Abstract: A crystalline condensation product of thiourea, formaldehyde and ammonia is prepared by mixing thiourea and formaldehyde or a substance readily affording formaldehyde under the conditions of the reaction, partly reacting them in the presence of an inert solvent, introducing ammonia, completing the condensation and separating the crystalline condensation product, the reactants being employed in the relative proportions of from 1 to 4 mols. of formaldehyde and from 0.5 to 1.5 moles. of ammonia per mole. of thiourea.  A basic catalyst such as a tertiary amine or inorganic base may be present.  Since ammonia functions as a catalyst, the process may be carried out by adding aqueous ammonia slowly to a freshly-prepared solution of thiourea in aqueous formaldehyde with cooling, the major portion of the ammonia being added after the initial reaction between the thiourea and formaldehyde has occurred; the mixture may be heated up to 100 DEG  C. subsequently. The product has the empirical formula C4H10N4S, is soluble in water and hot ethanol, but insoluble in hydrocarbon solvents and may be used as a pesticide and a vulcanization accelerator and in reducing the flammability of nylon fabric.  In an example, thiourea is reacted with aqueous formaldehyde in the presence of pyridine at room temperature for 24 hours, aqueous ammonia added and reaction allowed to proceed for a further 24 hours, whereupon the crystalline product is removed and recrystallised from ethanol.  Specification 328,040, [Class 2 (iii)], is referred to. The Specification as open to inspection under Sect. 91 is not restricted to reaction in the presence of a solvent nor to the preparation of a crystalline product.  This subject-matter does not appear in the Specification as accepted.
Patent GB-140978-A (GB)
Title: Improvements relating to water heaters
IPC: F24H1/40
Filed: 1919-10-15
Abstract: 140,978. Johnson, G. E. Oct. 15, 1919. Water-tube boilers. - A boiler, shown in crosssection, is made in sections comprising a right and left hand part, with or without the addition of one or more intermediate parts. Each section comprises a water-tube looped many times above the fire-box b with a lower part a<1> constituting the side-walls of the fire-box and in some cases the fire-bars also.
Patent GB-1412469-A (GB)
Title: Sealing packing or joint forming in particular a cylinder  head gasket for an internal-combustion reciprocating piston engine
IPC: F16J15/08
Filed: 1972-11-04
Abstract: 1412469 Joint-making packing SOC D'ETUDES DE MACHINES THERMIQUES 4 Nov 1972 25298/75 Divided out of 1412468 Heading F2B A metal packing, e.g. for use as a cylinder head gasket comprises adjacent but separate annular portions 10<SP>1</SP>, 11<SP>1</SP>, the inner portion 11<SP>1</SP> being radially wider and of a softer metal than the outer portion 10<SP>1</SP> so that it is more easily deformable under compressive loading.
Patent GB-1094937-A (GB)
Title: Tin-free copper alloys and methods of preparing the same
IPC: C22C9/00
Filed: 1965-06-15
Abstract: An alloy consists of Sb 1.2-10.5% Ni 1.2-10.5% (the ratio of Sb to Sb + Ni being between 0.3 and 0.7), Cu the balance.  The alloy may also contain Pb up to 15%, Zn up to 2%, P and/or Mn up to 0.2% each.  It may be made by melting simultaneously Cu and a master alloy of Cu and Ni, deoxidizing and introducing the Sb.
Patent GB-486714-A (GB)
Title: A method of operating and means for regulating, gas engines which work with scavenging and charging
IPC: F02D9/00
Filed: 1937-09-20
Abstract: 486,714. Four - stroke engines ; regulating. MASCHINENFABRIK AUGSBURG - NURNBERG AKT.-GES. Sept. 20, 1937, No. 25487. Convention date, Sept. 21, 1936. [Classes 7 (ii) and 7 (vi)] In a method of operating gas engines working with scavenging, the scavenging-air is first admitted, and then pure gas is drawn in and followed by an air charge under pressure. Fig. 1 shows means for regulating such a gas engine, in which gas admitted at 5, 6 and air from a supercharger admitted at 3, 4 are controlled by inlet valves 1, 2, the air and gas being regulated by throttles 8, 12 connected to the governor by rods 9, 13 respectively. In gas engines having an exhaust-driven turbine blower, the air supply is kept constant independently of the load by connecting the air throttle also to a piston device 10 acted on at one side by the suction in the gas-inlet pipe 6, and also by a spring 11. In a modification, the right-hand side of the piston 10 is subjected to the pressure in the air-inlet pipe 4, and the left-hand side is either open to the atmosphere or to the gasinlet pipe 6. A stop device 16, 19 may be adjusted so as to prevent the piston device 10 from acting on the air throttle after a certain load stage has been reached. The air throttle may be placed in the inlet to the compressor.
Patent GB-1414456-A (GB)
Title: Combination of photosensitive element suited for use in  radiography
IPC: G03C5/16
Filed: 1972-05-31
Abstract: 1414456 X-ray intensifying screens AGFAGEVAERT 9 Nov 1971 [5 Nov 1971 31 May 1972] 50996/72 and 25529/72 Divided out of 1414455 Heading H5R [Also in Division G2] A light sensitive element (see Division G2) for radiographic use includes a support bearing on each side a light-sensitive silver halide emulsion layer each containing silver halide grains spectrally sensitized by means of one or more sensitizing dyes to light in the wavelength range 450-570 nm.; each layer being capable by exposure to such light and full development of a covering power of more than 50; and the emulsion layers together containing silver halide in an amount equivalent to less than 8 gm. of silver per square metre. For radiography, the element is combined with an X-ray fluorescent intensifying screen having more than half its spectral emission above 410 nm. and its maximum in the range 450-570 nm., and an intensification factor of at least 20 at 40 KV and at least 25 at 80 KV. The combination, by permitting the use of a minimum of silver halide per unit of surface, facilitates rapid processing. The intensifying screen may be separate from, or integral with, the photosensitive material, which may have the emulsion on one or both sides of the support. To reduce, in the latter case, the blurring effect of "cross-over", i.e. arising from the diffusion of light emitted from the screen in passing to the emulsion on the further side of the support, a "screening dye", absorbing the fluoresencent light by an amount which increases with the greater path length associated with increasing obliquity of the light path, is included in the fluorescent layer, or as a subjacent antihalation layer, or in both. Examples of suitable materials, which may include pigments such as carbon black, are listed. The effect of cross-over is further reduced by the inclusion of "filtering dyes", absorbing the fluorescent light, in the emulsion layers or their support; examples of suitable dyes are listed. Suitable fluorescent materials for the screen include rare earth oxysulphides and oxyhalides activated with other rare earths, of which examples are given, having a grain size in the range 1-25 micron, and dispersed in a binder, e.g. cellulose nitrate, ethylcellulose, cellulose acetate, polyvinyl acetate, polystyrene, polyvinylbutyral, polymethyl, and methacrylate. The material may form a sheet 0À05 to 0À5 mm. thick, which may be provided with a protective surface layer of cellulose nitrate, cellulose acetate, and polymethyl methacrylate.
Patent GB-636968-A (GB)
Title: Improvements in or relating to dolls or like toys
IPC: A63H3/04
Filed: 1947-09-19
Abstract: 636,968. Dolls and toy animals. PLAYLASTIC TOY CO., Ltd., and KLEIN, P. Sept. 19, 1947, No. 25564. [Class 132 (iii)] A toy made from rubber or other soft mouldable material having bendable limbs has a supporting framework embedded therein, the said framework being flexible at some or all of the joints and inflexible between the joints. Preferably part or all of the toy is made from sponge rubber. The framework may be flexible being made from wire or metal bands stiffened where necessary between the joint by wood or thermoplastic material enclosing the wire or bands. The wire may bend at the joints, or hinges may be provided. Wooden stiffeners may be bored and threaded on the wire before it is bent into shape, or split and attached by gluing the pieces together after shaping. Preferably the wood is secured to the wire by adhesive. The body may be made by placing the framework in a suitably shaped hollow mould and then filling this with liquid latex foam which is vulcanized when solid. Elements may be incorporated at the neck by which the head is attached and these may be used to locate the skeleton in the mould. A latex skin, preferably flesh coloured may be attached to the body after moulding or formed on the body during moulding. Toy animals may be covered with hair, wool or the like. Preferably vulcanization is done by electronic heating, also setting and/or drying. Foamed polyvinyl chloride or unfoamed rubber or thermoplastic material maybe used. In the drawing stiffeners are indicated by broken lines and the wires by dotted lines. The arms are hinged at the shoulder 27 and elbow 26 and the legs at the knee 210 and hip 211. The hinges are formed by a rivet 212 passing through loops 213 and an annulus 214 of thick paper. A similar doll may be made in which there are no hinges and the wire bends at the various joints. Reference has been directed by the Comptroller to Specification 632,427.
Patent GB-976249-A (GB)
Title: Radio receiver including a monitoring circuit
Inventor: GARFIELD WILLIAM LITTERY
IPC: G01S13/34
Filed: 1961-07-14
Abstract: 976,249. Radar. STANDARD TELEPHONES & CABLES Ltd. July 14, 1961, No. 25675/61. Heading H4D. A radio receiver includes an amplitude limiter to produce a substantially square-wave signal from a received sinusoidal signal, a counting circuit of the " cup-and-bucket " integrator type, the output from the limiter being connected to the input to the counting circuit, a gate circuit, one input of which is connected to the output from the counting circuit, means to apply a D.C. bias to a second input to the gate circuit, the bias being of such a value that a signal is obtained from the output of the gate circuit in the presence of interference pulses in the limited signal, and means to apply the output from the gate circuit to operate an indicator. The invention is described as applied to an altimeter, the ground echo being mixed in the receiver with a second signal obtained from the frequency-modulated transmitter; the beat frequency is measured by counting the transitions, in a counting circuit, of a square wave signal obtained by amplifying and limiting the beat frequency signal. In the embodiment the receiver square-wave beat frequency signal is fed to the base of transistor 3 which affords an output, Fig. 3a, of limited and constant maximum amplitude the positive-going transition of which charges capacitor 5 so producing a positive charge on the upper plate of capacitor 8, the latter having a much greater capacitance than the former. On the occurrence of the negative-going transition of waveform, Fig. 3a, diode 7 is non-conducting and a current pulse through diode 6 discharges capacitor 5; capacitor 8 discharges via resistor 9, Fig. 3b, and the values of these components is so selected that the capacitor is completely discharged in a period less than that of the fundamental component of the highest beat frequency. If interference pulses are present on the receiver output, Fig. 3c, the voltage across capacitor 8, Fig. 3d, rises above the reverse bias set on diode 10 by network 11, 12 and an output, Fig. 3e arises at terminal 16. This output is amplified and triggers a monostable multivibrator to actuate a visual warning device.
Patent GB-1173415-A (GB)
Title: Non-dispersive Selective Infrared Gas Analysis
IPC: G01N21/37
Filed: 1968-05-29
Abstract: 1,173,415. Infrared gas analyzer. MINE SAFETY APPLIANCES CO. May 29, 1968 [June 23, 1967], No.25701/68. Heading G1A. In an infrared analyzer with sample and reference containers 7, 14, Fig. 1, and a cyclically operated shutter device 6, the detection means comprises two radiation chambers 12, 16, a gas flow chamber 21 passages 18, 19 connecting the flow chamber to each absorption chamber, a thermally sensitive device, e.g. a thermistor in the flow chamber, and a gas in the chambers 12, 16 comprising the gas to be detected or a gas with similar infrared absorbing properties. The thermistor may be included in a Wheatstone bridge or connected in series with a resistor 26 across a source 24 to form a potentiometer input to amplifier 28. The shutter may allow sequential or simultaneous radiation beams, and the chambers 12, 16 may be connected to a common heat sink. The passages 18, 19 may be shaped and positioned for optimum flow.
Patent GB-1372760-A (GB)
Title: Conversion of uranium hexafluoride to uranium dioxide structures of controlled density and grain size
Inventor: DEHOLLANDER W R
IPC: G21C3/62
Filed: 1972-06-02
Abstract: 1372760 Uranium dioxide structures GENERAL ELECTRIC CO 2 June 1972 [16 June 1971] 25774/72 Heading C1A Ceramic structures of uranium dioxide are produced by (a) preparing a uranium dioxide rich powder from uranium hexafluoride by introducing into a reactor a first gaseous reactant, a second gaseous reactant and a shielding gas, said first reactant comprising a mixture of uranium hexafluoride with a carrier gas which is oxygen or a mixture of oxygen with another gas or gases, said second reactant comprising a reducing gas and said shielding gas being introduced into the reaction zone between said first and second reactants and to allow cross diffusion of said reactants as they pass through the reactor and eventually to allow formation of a flame by reaction of said uranium hexafluoride, oxygen and reducing gas; (b) separating the uranium dioxide rich powder from the gaseous reaction by-products produced in the conversion of the uranium hexafluoride; (c) prepressing the uranium dioxide rich powder (d) granulating the structure of step (c) to produce a full flowing granular powder (e) defluorinating the granulated uranium oxide rich powder in a non-oxidizing atmosphere (f) pressing the uranium dioxide rich powder of step (e) to a structure of predetermined shape and dimensions and (g) sintering the structure of step (f) in a non- oxidizing atmosphere to give a uranium dioxide structure of controlled density and grain size. The reaction products of step (a) may be oxidized to convert uranium dioxide rich powder to a higher oxide of uranium and the gaseous reaction by-products of step (a) may be treated to recover hydrogen fluoride and water vapour as hydrofluoric acid. The controlled atmosphere in the difluorinating and/or sintering step may comprise wet hydrogen, vaporized alcohol carrier gas, carbon dioxide, hydrogen or dissociated ammonia. The product of step (d) may be screened prior to defluorination and a lubricant may be added to the defluorinated powder of step (e) prior to pressing.
Patent GB-217121-A (GB)
Title: An improved forging or like machine
IPC: B21J9/06
Filed: 1923-10-16
Abstract: 217,121. Blakeslee, J. R. Oct. 16, 1923. Forging-machines.-The sliding tool head 1 of a forging or like machine is reciprocated by a crank 4 through a link 16 pivoted at 17 in the head and normally locked against a stop 20 by a catch 22. When it is desired to stop the head a wedge 26 is placed in the path of a roller 27 on a bell crank lever 31 pivoted at 29 in the head and attached bv a link 32 to the catch. This lifts the catch and allows the link 16 to oscillate in the head. A safety device comprising a joint 8 blocked by a spring catch 9 may be provided.
Patent GB-1360114-A (GB)
Title: Ply-stitching and turn-down device for tyre-building machines
IPC: B29D30/28
Filed: 1972-06-02
Abstract: 1360114 Tyre building apparatus A I BAKHAREV G L PORTNY I S ROITBURD N K ASTAFIEV I M MUSLAEV V D ROSSIN I F LEBEDEV I F SHEINBERG and S E ZHURBINSKY 2 June 1972 25825/72 Heading B7C A stitching and ply turn-down device for use in tyre building comprises two rollers 2 each rotatably and coaxially mounted on one end of a respective rectilinear lever 9 operatively connected to a mechanism 1 for moving the roller over the cylindrical peripheral surface and shoulders of a rotating tyre building drum 3, each roller being formed from a number of discs, e.g. 15, 16, whose respective diameters successively decrease in the axial direction passing from the other end of the lever through the said one end of the lever, the discs being mounted, e.g. by means of bearings 17, 19, to be rotatable independently of one another and, except for the disc of largest diameter, being mounted for rotation through the intermediary of elastic bushings, e.g. 18. Each mechanism 1 may be movable by means of motor-driven screws 5 along guide rods 4 parallel to the drum 3 axis, and may comprise two piston and cylinder devices 6, 10 which serve to urge the associated roller against the drum surface and are connected to one another and the associated lever 9 as shown in Fig. 1.
Patent GB-502619-A (GB)
Title: Improvements in or relating to the manufacture and use of binders for binding aggregates such as briquettes
IPC: C10L5/14
Filed: 1937-09-23
Abstract: 502,619. Agglomerating fuel. SQUIRE, L. R. L. Sept. 23, 1937, No. 25843. [Class 50] A binder for aggregates such as fuel briquettes comprises peat treated with alkalis and a small quantity of starch incorporated therewith before, during or after the alkali treatment, insufficient to act as a binder but replacing the lost colloidal substances of the, peat. In an example, to a Welsh peat is added a milk of starch forming a slurry containing 10 per cent dry peat and starch amounting to 10 per cent 'of the weight of dry peat. A mixture of 136À4 kg. of the slurry, made slightly alkaline with caustic soda, with 1000 kg. ground anthracite is moulded into pellets. Another mixture contains half this quantity of starch. The aqueous content of the mixture is preferably 10-11 per cent by weight. Specification 417,923 is referred to.
Patent GB-838905-A (GB)
Title: Improvements in or relating to printing elements for use in the screen printing process
IPC: B41N1/24
Filed: 1957-08-16
Abstract: 838,905. Stencils. HAVER, F., and HAVER, E. F., [trading as HAVER & BRECKER.]. Aug. 16, 1957 [Aug. 21, 1956], No. 25899/57. Class 100(2) In a method of preparing wire mesh screens for the silk-screen printing processes, pressure is applied to the screen by ironing or calendering so as to reduce its thickness and to' smooth one or both surfaces thereof, a lacquer then being applied to the non-printing parts. If only one surface is to be smoothed, a calender may be used having one hard and one soft roller.
Patent GB-138592-A (GB)
Title: Improved apparatus for varying the adjustment of the guide blades in centrifugal compressors
IPC: F04D29/46
Filed: 1919-10-22
Abstract: 138,592. Akt.-Ges. Brown, Boveri, et Cie. Feb. 5, 1919, [Convention date]. Regulating.-To prevent surging, the guideblades are adjusted by a simultaneous advancing and rotary motion without the use of pivot pins and guides. The guide-blades D are fixed to toothed wheels A, which are interposed between the toothed rings B, C. The wheels A may be formed as shown in Fig. 3, and may be provided' with teeth, one at each end, formed as a knife edge. The blades D, Fig. 5, are connected to the wheels A by parts G which pass through an opening formed between a partition F on the ring B and the ring C outside the range of the nozzle.
Patent GB-836753-A (GB)
Title: Novel substituted tetrahydropyridines and process for preparing same
Filed: 1958-08-13
Abstract: The invention comprises compounds of the general formula <FORM:0836753/IV (b)/1> wherein R, R1 and R2 are each a hydrogen atom, a hydroxy group or a lower alkoxy or lower alkanoyloxy radical in which the alkyl groups have from 1 to 3 carbon atoms (not more than two of R, R1 and R2 being hydrogen), together with the acid addition salts thereof.  The compounds of the invention may be prepared by aralkylating 4-phenyl-1,2,3,6-tetra-hydropyridine with a phenethyl halide of the general formula <FORM:0836753/IV (b)/2> Those compounds wherein R, R1 or R2 represent hydroxy or alkanoyloxy radicals can also be prepared by dealkylating the corresponding compound wherein one or more of R, R1 or R2 is an alkoxy and, if desired, acylating the free hydroxy groups.ALSO:Pharmaceutical preparations such as tablets, capsules, solutions and elixirs may contain compounds of the general formula <FORM:0836753/VI/1> wherein R, R1 and R2 are each a hydrogen atom, a hydroxy group, a lower alkoxy or a lower alkanoyloxy radical, wherein the alkyl groups contain up to three carbon atoms (not more than two of R, R1 or R2 being hydrogen) or acid addition salts thereof, e.g. hydrochloric, maleic, benzoic, succinic and citric acid salts.
Patent GB-928942-A (GB)
Title: Improvements in or relating to dough-moulding machines
IPC: A21C3/00
Filed: 1960-07-27
Abstract: 928,942. Dough moulding machines. THOMAS BARKER & SONS Ltd., G. L. COXON, and J. H. PARRY. Oct. 27, 1961 [July 27, 1960], No. 26058/60. Class 87(2). Dough for sectional bread is delivered in cylindrical form by passing between a rotating drum 6 and a stationary deck 5, dividing by knives 7 and delivering over resiliently-yieldable curved cover plates 10 which equalize the pressure on the dough before discharge at the lipped end 12. Backing the plates 10 are strips 14 carrying layers 16, 16a of sponge rubber. Deck adjustment means include rocking levers 24, 25 and a longitudinally movable peg and socket connection 19 and 20.
Patent GB-426247-A (GB)
Title: Improved inhaling apparatus
IPC: A61M11/04
Filed: 1934-09-11
Abstract: 426,247. Inhalers. NIELSEN, N. C., 11, Ved Sonderport, Copenhagen. Sept. 11, 1934, No. 26064. [Class 81 (ii)] Inhaling apparatus comprises a channel system with a check valve through which a medicament is conducted to a nose- or mouth-piece by vapour produced in a boiler and mixed with air, the said system being provided with one or more inspiration holes communicating with the outer air and placed in the path of the vapour after the container for the medicament. A boiler a heated electrically or otherwise to give a gentle generation of steam is connected through a drop separator c and sleeve e with a nose-piece f. The sleeve e, Fig. 3, contains the medicament tube o and a valve t held in place by a spring v ; p and p <1> are metal gauzes. Holes w serve for admitting air during inhalation during which the exhaling apertures x may be closed by the fingers, or both sets of apertures may be fitted with valves. The drop separator c, Fig. 2, consists of separate members which screw together and are formed with projections h, j having bores k, l respectively.
Patent GB-1216019-A (GB)
Title: Improvements in and relating to a process for the production of nitric oxide
IPC: C01B21/26
Filed: 1968-05-31
Abstract: 1,216,019. Nitric oxide. ZAKLADY AZOTOWE. 31 May, 1968 [1 June, 1967], No. 26089/68. Heading ClA. Nitric oxide is produced by oxidizing at an elevated temperature, ammonia with a catalyst of platinum dioxide which may be mixed with its thermal decomposition products. An example describes the process in which a mixture of ammonia and air is passed through the catalyst which is supported on a gas-permeable ceramic plate. The reaction may be initiated by a hydrogen flame. The platinum dioxide catalyst may be formed in the reaction vessel by starting with a compound, eg: chloroplatinic acid, which, under the conditions of the reaction is converted to platinum dioxide. The nitric oxide produced may be converted to nitric acid by known methods.